﻿#include<bits/stdc++.h>

//#include <iostream>
//#include<map>
//#include<string>
//#include<fstream>
//#include<sstream>
//#include<>
using namespace std;

void read_data() {

}
void search() {

}


int main()
{
    map<string,Book> info;

    //read_data()
    read_data()
}